They canceled all the flights out of Chicago today because of the blizzard. If it [not snow] so hard, I would not be stuck in the airport.
hadn't snowed / hadn't been snowing
Charles arrived late again to work yesterday. He came running into the office complaining of car problems, but everyone knew it was a lie. If the boss [stand] there when he showed up, I am sure he would have been fired.
had been standing
If I were in Hawaii right now, I [sunbathe] on a beach. I would not be stuck here in this office with mountains of paperwork.
would be sunbathing
John is so incredibly lazy! If we went over to his house right now, I bet he [lie] on the couch with some pizza in one hand and a remote control in the other.
would be lying
If I were a millionaire, I [not work] here in this factory.
wouldn't be working
I wish we had time to organize a surprise party for Linda. If all of her friends [sit] in her apartment waiting for her when she gets home from work tomorrow, she would be so surprised!
were sitting
If she [stay] in that hotel next week while the trade show is being held, she might be able to meet some contacts and tell them about our new line of computer software.
stayed / were staying
When Mike came home yesterday, he claimed he had been jogging. I didn't believe a word he said. If he had really been jogging, he [sweat] or at least out of breath. I think he went down to the coffee shop and had a donut.
would've been sweating
Jane's plane arrived a half an hour ahead of schedule. If we hadn't decided to go to the airport early, she [wait]
would've been waiting
If Sam hadn't stopped to pick up that quarter, he [cross] the street when the car ran the red light. He could have been killed!
would've been crossing
